GSTM2020-3
https://doi.org/10.5194/gstm2020-3
GRACE/GRACE-FO Science Team Meeting 2020
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.

Processing of GRACE FO satellite to satellite tracking data using the GRACE SIGMA software

Mathias Duwe, Igor Koch, Jakob Flury, and Akbar Shabanloui
Mathias Duwe et al.
  • (duwe@ife.uni-hannover.de)

At our Institute we compute monthly gravity potential solutions from GRACE/GRACE-FO level 1B data by using the variational equations approach. The gravity field is recovered with our own MATLAB software "GRACE-SIGMA" that was recently updated in order to reduce the calculation time with parallel computing approach by approx. 80%. Also the processing chain has changed to update the background modeling and we made tests with different orbit types and different parametrizations. We discuss progress to include laser ranging interferometer data in gravity field solutions. We present validation results and analyze the properties of postfit range-rate residuals.

How to cite: Duwe, M., Koch, I., Flury, J., and Shabanloui, A.: Processing of GRACE FO satellite to satellite tracking data using the GRACE SIGMA software, GRACE/GRACE-FO Science Team Meeting 2020, online, 27–29 Oct 2020, GSTM2020-3, https://doi.org/10.5194/gstm2020-3, 2020.